Question

The radius of curvature to circle

2+

2=

2

at any point is​

Answer 1

Answer:

Once you know the formula for a radius of curvature in y=f(x) form (which I had to look up), this is a simple calculus problem.

dy/dx = 2x - 6

[d^2y/dx^2 = 2, but you don’t need to use this to find the minimum!]

The numerator of the RoC formula is (1 + (2x+6)^2)^3/2. Simply minimize this with respect to x to get x=-3, making y=1/2.

Answer 2

Answer:

2

explanation:

=2xr

=2x1

=2